672.06 IMMUNITY FROM PROSECUTION.
(a) No person who acquires, possesses or carries a firearm or dangerous ordnance in violation of Section 672.05 shall be prosecuted for such violation if he reports his possession of firearms or dangerous ordnance to any law enforcement authority, describes the firearms or dangerous ordnance in his possession and where they may be found and voluntarily surrenders the firearms or dangerous ordnance to the law enforcement authority. A surrender is not voluntary if it occurs when the person is taken into custody or during a pursuit or attempt to take the person into custody, under circumstances indicating that the surrender is made under threat of force.
(ORC 2923.23)